Process for melting scrap iron in an electric furnace and installation for implementing the process
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United States of America Patent
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Dec 31, 1996
Grant Date -
N/A
app pub date -
Jun 12, 1995
filing date -
May 13, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A direct current electric furnace for melting ferrous raw material, such a scrap iron, comprising a vessel (1) closed by a detachable cover (13), at least one consumable electrode (5) which passes through at least one opening (16) in the cover (13), at least one stationary electrode (5) positioned in the bottom (2) of the vessel (1), and comprising at least one source of direct current, the vessel being defined by a bottom (2) in the shape of a basin (21) and by a lateral wall (12). The height (H1) and the cross-section (S1) of the basin (21) are determined by the conditions of use, such that the basin (1) (21) can contain a prescribed quantity of molten metal, the height (H2) of the lateral wall (12) of the vessel (1) being such that the vessel (1) can accommodate a sufficient charge of scrap iron (7) to produce, in a single melting operation, the prescribed quantity of a molten metal.
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